Free Calculators That Save You Real Money Every Day
GST/HST, paycheck, CRS, take-home pay, HELP, first-home costs and shipping — plus PayPal & Etsy fees, GPT tokens, solar, VAT, pregnancy dates & freelance rates.
No sign-up. No uploads. Works offline.
- 100% Free Forever
- No Account Needed
- Private — Runs in Your Browser
- Mobile & Desktop Ready
Top calculators saving people money right now
Real answers in seconds — pick a tool, get results, keep more of your money.
Pick your platform — get every calculator for it
Etsy, Shopify, eBay, Amazon, PayPal, Stripe or TikTok Shop. Choose one and the matching seller calculators appear below.
Etsy seller calculators
Fees, profit, pricing, break-even, Offsite Ads, shipping, tax and income — the full Etsy suite for sellers in Canada, Australia, the UK and beyond.
More popular tools
Fresh, fast, and free — pick what solves your problem today.
Popular searches this week
Long-tail queries our visitors solve daily — click any to jump in.
Browse by category
Nine categories, ready for daily use.
Latest additions
Fresh tools shipped this month.
From the blog
In-depth guides with real numbers, not fluff.
Frequently asked questions
Everything you need to know about FastDailyTools.
Are all the calculators on FastDailyTools really free?
Yes — every tool on FastDailyTools is 100% free, forever. No sign-up, no credit card, no hidden paywall, and no limits on how many times you can use them. Works on desktop, iPhone, and Android.
Do I need to create an account to use the tools?
No account is ever required. Open any tool and start calculating in one second — your inputs never leave your browser.
Which calculators does FastDailyTools cover?
Finance calculators for Canada, Australia, the UK, New Zealand and Ireland (GST/HST, paycheck, CRS, take-home pay, HELP, first-home costs and shipping), plus seller-fee calculators for Etsy, Shopify, eBay, Amazon, Stripe and TikTok Shop, AI token and API cost calculators, solar, SEO, developer, text, image and health calculators. Use the search above or browse by category to find the one you need.
Is my data safe when I use these calculators?
Yes. Every tool runs 100% in your browser using client-side JavaScript. Nothing is uploaded, logged, or sent to any server — perfect for sensitive financial, pregnancy, or business inputs.
Do these tools work on mobile phones?
Absolutely. Every calculator is fully mobile-responsive and works on iPhone, iPad, Android phones and tablets. You can also install FastDailyTools as a PWA for one-tap access from your home screen.
Can I use these free online tools for my business?
Yes — freelancers, Etsy & Shopify sellers, contractors, solar installers, accountants, and developers use FastDailyTools daily for pricing, fees, tokens, and quotes. Everything is free for commercial use.
Start saving time and money in one click
53+ free tools. No sign-up. Add to your home screen and use anywhere.